Superconducting Dome in ${\mathrm{La}}_{3-x}{\mathrm{Sr}}_x{\mathrm{Ni}}_2{\mathrm{O}}_{7-\delta }$ Thin Films

Abstract

The ambient-pressure superconductivity in ${\mathrm{La}}_3{\mathrm{Ni}}_2{\mathrm{O}}_7$ thin films via compressive epitaxial strain provides a highly accessible platform for diverse characterization techniques, facilitating the studies of high-temperature superconductivity. Here, we systematically map the phase diagram and reveal the superconducting dome with an electron-hole crossover in compressively strained ${\mathrm{La}}_{3-x}{\mathrm{Sr}}_x{\mathrm{Ni}}_2{\mathrm{O}}_{7-\delta }$ thin films by simultaneously tuning Sr doping and oxygen content. The maximum transition temperature ($T_c$) coincides with an anomalous sign change in the Hall coefficient ($R_H$), reminiscent of electron-doped cuprates, which may signal a Fermi surface reconstruction. Beyond the superconducting dome, a $\ln 1/T$ insulating regime and a $T$-linear resistivity regime are also resolved, resembling behaviors observed in cuprates and infinite-layer nickelates. This work reveals a dome-shaped relationship between $T_c$ and $R_H$ and establishes a key framework for understanding unconventional superconductivity in nickelate systems.

arXiv comment33 pages, 15 figures

References in corpus (48)

• Complexity in Strongly Correlated Electronic Systems
• Theory of Intertwined Orders in High Temperature Superconductors
• Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure
• Progress and perspectives on the electron-doped cuprates
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Strange metal in magic-angle graphene with near Planckian dissipation
• High Temperature Superconductivity in Iron Pnictides and Chalcogenides
• Doping dependence of an n-type cuprate superconductor investigated by ARPES
• Superconducting Dome in Nd${}_{1-x}$Sr${}_x$NiO${}_2$ Infinite Layer Films
• Phase diagram and superconducting dome of infinite-layer $\mathrm{N}{\mathrm{d}}_{1-\mathrm{x}}\mathrm{S}{\mathrm{r}}_{\mathrm{x}}\mathrm{Ni}{\mathrm{O}}_2$ thin films
• The remarkable underlying ground states of cuprate superconductors
• High-temperature superconductivity with zero-resistance and strange metal behavior in La${}_3$Ni${}_2$O${}_{7-\delta }$
• Bilayer two-orbital model of La${}_3$Ni${}_2$O${}_7$ under pressure
• Superconductivity in pressurized trilayer La${}_4$Ni${}_3$O${}_{10-\delta }$ single crystals
• Metal-to-Insulator Crossover in the Low-Temperature Normal State of Bi_{2}Sr_{2-x}La_{x}CuO_{6+δ}
• Self-doped Mott insulator for parent compounds of nickelate superconductors
• The s${}^{\pm }$-Wave Pairing and the Destructive Role of Apical-Oxygen Deficiencies in La${}_3$Ni${}_2$O${}_7$ Under Pressure
• Electronic correlations and superconducting instability in La${}_3$Ni${}_2$O${}_7$ under high pressure
• Possible high $T_c$ Superconductivity in La${}_3$Ni${}_2$O${}_7$ under High Pressure through Manifestation of a Nearly-Half-Filled Bilayer Hubbard Model
• Interlayer Coupling Driven High-Temperature Superconductivity in La${}_3$Ni${}_2$O${}_7$ Under Pressure
• Evidence for a quantum phase transition in the electron-doped cuprate Pr2-xCexCuO4+d from Hall and resistivity measurements
• Orbital-Dependent Electron Correlation in Double-Layer Nickelate La3Ni2O7
• Aspects of the Synthesis of Thin Film Superconducting Infinite-Layer Nickelates
• Ambient-pressure superconductivity onset above 40 K in bilayer nickelate ultrathin films
• Magnetoresistance near a quantum critical point
• Pressure-induced superconductivity in polycrystalline La3Ni2O7
• Signature of superconductivity in pressurized La${}_4$Ni${}_3$O${}_{10}$
• Fermi Surface Evolution in an Electron-Doped High-Tc Superconductor Revealed by Magnetic Quantum Oscillations
• Character of the "normal state" of the nickelate superconductors
• Electronic and magnetic excitations in La${}_3$Ni${}_2$O${}_7$
• Theoretical analysis on the possibility of superconductivity in a trilayer Ruddlesden-Popper nickelate La${}_4$Ni${}_3$O${}_{10}$ under pressure and its experimental examination: comparison with La${}_3$Ni${}_2$O${}_7$
• The Strange Metal State of the Electron-Doped Cuprates
• Normal and superconducting properties of La${}_3$Ni${}_2$O${}_7$
• High-T${}_C$ superconductivity in $\mathrm{L}{\mathrm{a}}_3\mathrm{N}{\mathrm{i}}_2{\mathrm{O}}_7$ based on the bilayer two-orbital t-J model
• Neutron Scattering Studies on the High-$T_c$ Superconductor La${}_3$Ni${}_2$O${}_{7-\delta }$ at Ambient Pressure
• Theory of Low-Temperature Hall Effect in Electron-Doped Cuprates
• Superconductivity in trilayer nickelate La4Ni3O10 under pressure
• Electronic Structure of Electron-doped Sm1.86Ce0.14CuO4: Strong `Pseudo-Gap' Effects, Nodeless Gap and Signatures of Short Range Order
• Angle-resolved photoemission spectroscopy of superconducting (La,Pr)3Ni2O7/SrLaAlO4 heterostructures
• Superconductivity and normal-state transport in compressively strained La${}_2$PrNi${}_2$O${}_7$ thin films
• Negative Hall coefficients of heavily overdoped La2-xSrxCuO4
• Violation of the isotropic-$\ell$ approximation in overdoped La_{2-x}Sr_xCuO_4
• Bulk superconductivity up to 96 K in pressurized nickelate single crystals
• Correlated electronic structures and unconventional superconductivity in bilayer nickelate heterostructures
• Selective formation of apical oxygen vacancies in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Band Structure and Pairing Nature of La${}_3$Ni${}_2$O${}_7$ Thin Film at Ambient Pressure
• Tunable superconductivity in parent cuprate Pr${}_2$CuO${}_{4\pm \delta }$ thin films
• Decoupling between $d_{x^2-y^2}$ and $d_{z^2}$ orbitals in hole doped La${}_3$Ni${}_2$O${}_7$

Cited by in corpus (3)

• Superconductivity and Electronic Structures of Nickelate Thin Film Superstructures
• Quantum Monte Carlo study of the metal-insulator crossover in the square-lattice Hubbard model
• Superconducting weak links at substrate steps in bilayer nickelate films